Belt conveyer



www

T. G. NYIBORG March 23, B937.

BELT CONVEYER 2 snets-sheet 1 'Filed Sept. 18, 1935 T. G. NYBORG BELTCONVEYER Filed Sept. 18, 1935 Fig. 2,

2 Sheets-Sheet 2 Arrae/vfr' Patented` Mar. 23, 1937 UNITED sra'rss anniPATENT GFFICE BELT CONVEYER Application September 18, 1935, Serial No.41,165 In Great Britain December 5, 1934 7 Claims.

This invention relates to belt conveyers and frame constructionstherefor, and more particularly to such conveyers when they are made insections for easy erection and dismantling.

In conveyers intended for use in mines, or other places, where theerection and dismantling has to be carried out in difcult circumstances,it is desirable thatI each part should be of the smallest overalldimensions consistent with having relalo tively few parts and givinggreat strength and rigidity when erected.

In the improved conveyer construction side plates are provided which arelocated in simple roller frames by means of pegs or the like, these l5pegs being adapted to enter into suitable sockets, and the dispositionof the' side plates and these pegs and sockets is such that whilst theupper portions of the side plates are locate-d within the roller frames,the lower portions of the side 20 plates are located outside or towardsthe outside of the roller frames.

To suit this disposition 'of the side plates the intermediate portionsof these, between the upper and the lower portions, are set or outwardly25 and downwardly bent at a suitable angle in relation to the verticalplane.

Such a construction of the side plates enables them to be maderelatively light in weight, and therefore easy to handle, whilst beingrelatively 3'0 of great strength and rigidity. Another feature of such aconstruction is that the upper portions of the side plates may thus bedisposed so as to lie relatively close to the upper or loaded run o. thebelt, which generally speaking runs in a 3'5 straight line, whereas thelower portions of the side plates lie well clear of the lower orunloaded run of the belt, which is apt to sway or run out of thestraight line.

The locating pegs may be attached to, or form 40 a part of, the sideplates, the locating sockets then being attached to, or forming a partof, the roller frames, or vice versa, as desire-d.

In adaptations of this invention where the sockets are attached to, orform a part of, the roll- 45 er frames, holes or ports may be providedin the sides of the sockets to allow of the free egress of coal dust, orother refuse, which might otherwise accumulate within the sockets andobstruct or prevent the entry of the pegs.

50 Brackets at each end of the longitudinal foot angles are used toguide the bottom edge of the side plates in addition to one pair beingused as supports for the bottom roller spindle.

Other parts of the invention are embodied in 55 the preferred form ofconveyor, which it is now proposed to describe by way of example, withreference to the accompanying drawings; theaspects of the invention forwhich a monopoly is sought will be found set out in the claims.

In the drawingsz- 5 Figure l is a side View of a roller frame and theadjacent ends of a pair of side plates, and

Figure 2 is a section on the line II of Figure 1.

Figure 3 is a broken transverse section taken through the box members.

The complete conveyer comprises a number of roller frames joined by sideplates 2, and each roller frame has a base or foot comprising twoparallel longitudinal angle members it connected by transverse anglemembers il. Opposing uprights are secured to the longitudinal anglemerni bers of each frame. In the form illustrated each upright is builtup from a pair of U-shaped metal plate members 5 arranged with theiropen sides abutting to form an open-topped box and secured to the feetby riveting li; the plates are further connected by a plate H to whicheach is secured by riveting l2. These uprights will be hereinafterreferred to as box members. The closed side of each U-shaped member iscut away, as at l, from an appropriate distance from the bottom to allowthe members to straddle the upstanding flange of the individual anglemembers of the foot, packing pieces 3 being inserted if required,through which the rivets also pass. 0

The abutting portions of the inner legs of the U-shaped members oi eachbox member are cut away from the top as at 9 to form a bearing for oneend of a roller l provided for the support of the upper run of theconveyer belt. The spindle of the roller is notched as indicated at 3ltoreceive the edges of the U-shaped members and locate the spindles.

When the conveyer is erected, adjacent roller frames are connected by aplate 2 on each side of 40 the conveyer. The upper edge of each of theseplates is curve-d or bent outwardly at the top to form a roll or flangei3, and each plate is bent outwardly and downwardly at an angle ofpreferably about on a longitudinal line approxi- 45 mately halfway downthe plate, as at iii. The sloping portion oi the plate extends outwardlyY a horizontal distance greater than the transverse width of the boxmembers, and the plate is then continued downwardly parallel to itsupper half.

At the ends of the plates the upper vertical portion has a vertical endedge l5 extending downwardly for about half its height, that isapproximately a quarter of the height of the plate, and this edge iscontinued by an inclined edge I6 which runs downwardly at an angle ofabout 30 to the horizontal away from the end of the plate until it meetsthe upper edge of the outwardly sloping portion of the plate. Thesubstantially wedge shaped end portion of the plate thus formed has ahorizontal length slightly greater than half the length of the boxmembers.

The ends of the outwardly sloping portion of the plate are cut away soas to form an edge 11 running outwardly at right angles to the plane ofthe plate from the point at which this sloping portion is joined by theinclined end edges I6 of the upper half of the plate. The lower portionof the plate below the outwardly inclined portion extends at each endbeyond its junction therewith a distance somewhat less than half thelength of the box members.

At each end of each plate, a metal peg is riveted to the outside of thesubstantially wedge shaped portion of the plate a small distance insidethe centre of the wedge shaped portion. The pegs are of rectangularcross section and each is cranked outwardly from the plate to form ashoulder I9 and to provide a space between itself and the lower portionyof the wedge shaped portion. When connecting two roller frames in theassembly of the conveyer, the pegs at the ends of a plate are insertedin the adjacent spaces formed in the interior of the two box membersbetween the plates ll and the closed ends of the U-shaped members, untilthe shoulders in the pegs come into contact with the upper edges of theinner walls of the box members as shown in Figure 2. The ends of thesubstantially wedge shaped portions of adjacent plates come to overlapinside the plane of the insides of the box members, and the lowerportions of the plates to lie outside the box members. The ends of thepegs are tapered to facilitate their insertion and in order that theinsertion of the pegs may not be prevented or rendered difficult by theaccumulation of coal dust or refuse within the box members, two holes2i! are cut in the outer wall of each box member extending each to apoint below the level which the ends of the pegs reach when fullyinserted.

Guides for the lower edges of the plates are provided one at each end ofthe longitudinal foot member of the roller frames. These guides areriveted to the outside of the upstanding flange of the foot. The guideat one end of the longitudinal member takes the form of a piece of sheetmetal split for a distance down from the top, one portion 22 so formedbeing bent outwardly and upwardly, so that the lower edge of the platemay be inserted between it and the other portion 23 at the same time asthe pegs are inserted in the box members. The upper edge of the outerportion 22 is bent outwardly to facilitate the entry of the plate.

The guide member at the other end of each longitudinal member comprisesa piece 24 of sheet metal and a piece 25 which may be a cast ironbracket, riveted one to the outside and the other to the inside of theupstanding flange of the foot, the outer one 24 being cranked outwardlyto form a space for the reception of the plate between itself and abearing member 26 `carried by the piece 25 for one end of a roller 21provided for the support of the lower run of the belt.

The arrangement of the peg and box member connection and of the guideson the longitudinal members of the frames provides support at each endof the plates at two points some little distance apart and produceslongitudinal lateral stiffness. The outwardly sloping portion of theside plates not only adds to the strength of the plates but also resultsin the plates lying close to the side of the upper run of the belt butat a considerably greater distance from the side of the lower run. Theupper run generally runs relatively straight, and the proximity of theplates to the sides Of this run is desirable. The lower run of the belt,on the other hand, is more apt to sway or run out of line. In theconveyer described above, the lower portions of the plate being situatedoutside the box members, the edges of the lower run of the belt onlycontact with the rounded ends of the box members, and edge wear is thusreduced.

The overall height required to enable the conveyer to be erected iscomparatively small, being approximately equal to that of the height ofthe conveyer when erected plus the distance which the pegs project intothe box members. This feature is of importance when the conveyer isbeing itted in a low-roofed mine gallery. A further feature ofimportance in ilitting is the comparatively small heights of theindividual parts into which the conveyer may be dismantled, since theheight of the roller frames to the tops of the box members may be aboutthe same as the height of the plates.

If desired the plates on opposite sides of the conveyer may be ofdifferent height, as is usual with face conveyers; but they can still besimilar in all respects except the height to which they extend above theupper run of the belt.

I claim:-

1. A frame construction for a belt conveyer comprising in combinationroller frames having sockets formed therein by the butting of the openends of pairs of U-shaped members, side plates having the upper portionthereof located within the roller` frames and the lower portion thereoflocated outside the roller frames, and pegs carried by said side plates,engaging in said sockets to locate said side plates relatively to saidroller frames.

2. A frame construction for a belt conveyer comprising in combinationroller frames, each of said roller frames comprising two U-shapedmembers, the abutting open edges of which form a socket and which arecut away to form a bearing for the upper roller of the conveyer,longitudinal members forming feet for said roller frames, bracketscarried by said longitudinal members at each end thereof, side plateshaving the upper portion thereof located within the roller frames andthe lower portion thereof located outside said roller frames, andrectangular pegs carried by said side plates, said side plates beinglocated relatively to said roller frames by the engagement of said pegsin said sockets and the lower edge of said side plates being guided bysaid brackets.

3. A frame construction for a belt conveyer comprising in combinationroller frames, side plates having the upper portion thereof locatedwithin the roller frames and the lower portion thereof located furtherapart and overlapping the roller frames outside the roller frames, andpegs carried by said side plates engaging sockets formed in said rollerframes.

4. A frame construction for a belt conveyer comprising in combinationroller frames having sockets formed therein, said sockets having portsin the sides thereof to allow of the egress of coal dust, side plateshaving the upper portion thereof located within the roller frames andthe lower portion thereof located further vapart and overlapping theroller frames outside the roller frames, and pegs carried by said sideplates en- 5 gaging in said sockets.

5. A frame construction for a belt conveyer comprising in combinationroller frames having sockets formed near the upper ends thereof andhaving longitudinally extending feet, side plates,

10 pegs carried by said side plates engaging in said sockets, andbrackets mounted on the feet of said roller frames to guide the loweredges of said side plates and retain them in such a position that thelower end portions of said side plates 15 lie closely adjacent to theexterior surface of the said roller fra-mes.

6. A frame construction for a belt conveyer comprising in combinationroller frames at each side having sockets formed near the upper ends 20thereof and having longitudinally extending feet, side plates crossingthe planes of said roller frames, pegs carried by said side platesengaging in said sockets, brackets mounted at each end of the feet ofsaid roller frame toI guide the lower edges of said side plates intoposition against the exterior surfaces of said roller frames, saidbrackets at one end of the feet of the roller frames being adapted tosupport the spindles of the bottom rollers of the belt conveyer.

'7. A conveyer comprising in combination a belt, side plates having theupper portion thereof disposed so as to lie relatively close to theupper .run of the belt and the lower portion thereof disposed so as tobe spaced away from the lower run of the belt, frames carrying rollerssupporting the belt, peg members carried by said side plates engagingsockets formed in said roller frames, and guide means for the loweredges of said side plates mounted on the feet of said roller frames, theparts being so arranged that the said upper portion and the said lowerportion of the side plates have their ends overlapping the said framesupon opposite sides thereof.

TAGE GEORG NYBORG.

